investigators searched the family home of tamerlan tsarnaev and his widow. however, if russell's dna matches that on the bomb, it still does not prove she was involved in the attack. younger brother, dzokhar tsarnaev remains outside of federal lockup outside of boston. the boston bombing, just one of the issues president obama spoke about today. he faced reporters on the 100th day of a second term in office. danielle nottingham reports for wjz, from washington. >> president obama suggested he'll consider military action against syria, if the international community confirms president bashar assad used chemical weapons on his own people. >> the proliferation risks are so significant that we don't want that genie out of the box. >> reporter: the president addressed his ongoing budget battle with congress, prodding lawmakers to find a compromise that will replace the automatic budget cuts. >> the only way we're going to lift it is if we do a bigger deal that meets the test of lowering our deficit and growing our economy. >> reporter: the president sounded more